[Gasification] Next week at the track

[andy schofield]

Dear Max,

  I belive you've 'hit the nail on the head' (old carpenter saying). It's 
time to quit cutting bait and start fishing... The grate outlet temperature 
is lazyily coming up to 650 degrees F after running at 2000 RPM dragging a 
heavy slab of concrete (to smooth the dirt track) nearly full open 
producer-gas throttle. Last spring both Doug Williams, and Arnt agreed that 
grate outlet temperature should be targeted at 850 degrees C. Any cooler you 
get tar. Any hotter you have metalurgy and CO to CO2 reversion problems. How 
could I be so stupid. She ain't gettin hot enough!
  First thing to do:
enshure fuel is as dry as possible. The cherry pits only loose 17% more mass 
when oven-dried for two hours at 220 degrees F. All the samples are like 
this (measured with my cheap instruments).
  Second thing to do:
insulate the hearth (exothermal zone). Mr. Greg Manning in Manitoba, Canada 
gave me great help toward surmounting this problem at great cost to himself 
a year ago. Now it is time to implement his heat loss prevention program. 
Hurrah Greg!... I'm going to insulate the poop out of it (both exothermic 
and endothermic zones).
  Third thing to do:
Use waste-heat radiating and convecting from components below and 
down-stream the grate to attain the highest temperature possible of the air 
flowing into the nozzles.
  Fourth thing to do:
increase nozzle ring diameter from FAO dimentions if grate outlet 
temperature is going too high. lower the restriction hole.
  Fifth thing to do:
Not clean spark-plugs anymore...Take pictures doing hot-laps. Just like them 
guys in North Carolina with gravel a-flying.

  I have confidence this will work. Thanks Max!

Andy

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